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Finding the Fourth Proportional to 271,292.80, 406,939.20 and 123,836.80

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Solution

The fourth proportional to 271,292.80, 406,939.20 and 123,836.80 is: 185,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,292.80 : 406,939.20 = 123,836.80 : x
  2. Step 2: Convert to fraction form
    271,292.80/406,939.20 = 123,836.80/x
  3. Step 3: Cross multiply
    271,292.80x = 406,939.20 × 123,836.80
  4. Step 4: Simplify right side
    271,292.80x = 50,394,048,322.56
  5. Step 5: Solve for x
    x = 50,394,048,322.56/271,292.80
  6. Step 6: Final answer
    x = 185,755.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.